The space tourism company can launch paying space enthusiasts 100 kilometers into the air so they can see Earth's curvature and experience about six minutes of weightlessness. And now, scientists want to get in on the fun too.

The institute bought two tickets for $200,000 apiece for scientists to fly aboard SpaceShipTwo, where they plan to conduct microgravity, climate and other experiments. The agreement stipulates that researchers will be able to reserve charter flights on the spacecraft.

Engineers are currently flight-testing SpaceShipTwo in the Mojave Desert, and there's no exact date for when flights will begin.

Regular folks can reserve their spot on a flight for the $200,000 price tag, including a $20,000 deposit. According to Virgin Galactic, 400 adventurers already have their name down.